Method for determining stable formation domain for radial-axial ring rolling

Abstract

The invention relates to a method for determining a stable formation domain for radial-axial ring rolling. The method comprises the following steps of: establishing a mathematically functional relation among every process parameter for the radial-axial ring rolling, namely, feeding speed vf of a core roller, growing speed vD of a ring blank, revolution speed n1of a driving roller, the feeding speed va of a tapered roller, the revolution speed na of the tapered roller and retreating speed vw of the tapered roller; determining a value range of key process parameters, namely the feeding speed vf of the core roller, the feeding speed va of the tapered roller and the growing speed vD of the ring blank; and acquiring the stable formation domain for the radial-axial ring rolling. The method has the advantages of providing important basis for optimal design and precise control in the radial-axial ring rolling process, shortening production cycle, reducing cost, and providing important guarantee for obtaining qualified product quality.

Description

Technical field [0001] The invention belongs to the field of ring rolling and forming processing, and in particular relates to a method for determining the stable forming area of ​​the ring diameter and axial rolling, so as to realize the stable forming in the rolling process. Background technique [0002] The radial and axial rolling of the ring is a complex dynamic forming system under the interaction of multiple parameters. There are complex contacts and collisions. Therefore, the successful establishment and stable forming of the forming process is the optimal design and process of the radial and axial rolling of the ring. The foundation and key of robust control. Therefore, the method to determine the stable forming area of ​​ring radial and axial rolling is studied, and the stable forming process of the forming process is obtained by establishing the functional relationship between the process parameters of the forming process and determining the value range of the key proc...

AI Technical Summary

Problems solved by technology

However, at present, due to the multi-parameter interaction and complex dynamic forming characteristics of radial and axial rolling of rings, the successful establishment and stable forming of the forming process still rely on experience and trial and error methods, lacking scientific methods and guidance According to the basis, the design cycle of the forming process is long, the cost is high, and the product quality is difficult to guarantee

Hua Lin et al. put forward the stable forming conditions of pure radial ring rolling process, including biting conditions, forging conditions, etc. (Hua Lin, Huang Xinggao, Zhu Chundong. Ring rolling theory and technology [M]. Beijing: Machinery Industry Press Society, 2001), which provides an important reference for the present invention, but it is only applicable to pure radial ring rolling and not to radial axial ring rolling

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